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Inst Tools > Blog > Formulas

Formulas

Instrumentation control engineering formulas used in industrial control systems and field instruments like 4-20mA and 3-15 PSI conversions.

RTD Graph

Calculate Temperature Coefficient of RTD

Relationship between Temperature Scales

Relationship between Temperature Scales

Formula for 4-20mA from 3-15PSI

Formula to Calculate 3-15psi from 4-20mA Current

Kv-value of a valve is determined by a standardised test

Calculate Flow Coefficient Kv of Solenoid Valve

Control Valve Cv Formula

Control Valve Cv calculation

Differential Pressure Transmitter

Calculate Process Variable from 4-20mA using Fraction of Measurement

Calculate PV Value

Calculate Process Variable from Transmitter Current

Temperature Transmitter Formula

Calculate Temperature Transmitter Output

Flow Transmitter Output Current Calculation

Calculate Flow Transmitter Output Current

Control valve positioner calculation

Calculate Control Valve Stem Position

4-20 mA Conversion Formulas

Standard 4 to 20 mA Conversion Formula

1 2 3 4 5

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